128075072389 has 8 divisors (see below), whose sum is σ = 141686124480. Its totient is φ = 114791997600.

The previous prime is 128075072381. The next prime is 128075072441. The reversal of 128075072389 is 983270570821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128075072389 - 2³ = 128075072381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128075072381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81993504 + ... + 81995065.

It is an arithmetic number, because the mean of its divisors is an integer number (17710765560).

Almost surely, 2^128075072389 is an apocalyptic number.

It is an amenable number.

128075072389 is a deficient number, since it is larger than the sum of its proper divisors (13611052091).

128075072389 is a wasteful number, since it uses less digits than its factorization.

128075072389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163988651.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 128075072389 in words is "one hundred twenty-eight billion, seventy-five million, seventy-two thousand, three hundred eighty-nine".